13261335261125 has 96 divisors (see below), whose sum is σ = 19540394505216. Its totient is φ = 8957592000000.

The previous prime is 13261335261121. The next prime is 13261335261133. The reversal of 13261335261125 is 52116253316231.

It is not a de Polignac number, because 13261335261125 - 2² = 13261335261121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261335261121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 522272180 + ... + 522297570.

It is an arithmetic number, because the mean of its divisors is an integer number (203545776096).

Almost surely, 2^{13261335261125} is an apocalyptic number.

It is an amenable number.

13261335261125 is a deficient number, since it is larger than the sum of its proper divisors (6279059244091).

13261335261125 is a wasteful number, since it uses less digits than its factorization.

13261335261125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26692 (or 26675 counting only the distinct ones).

The product of its digits is 194400, while the sum is 41.

Adding to 13261335261125 its reverse (52116253316231), we get a palindrome (65377588577356).

The spelling of 13261335261125 in words is "thirteen trillion, two hundred sixty-one billion, three hundred thirty-five million, two hundred sixty-one thousand, one hundred twenty-five".